// Any copyright is dedicated to the Public Domain. // http://creativecommons.org/publicdomain/zero/1.0/ // // Utility script for writing worker tests. In your main document do: // // <script type="text/javascript" src="worker_driver.js"></script> // <script type="text/javascript"> // workerTestExec('myWorkerTestCase.js') // </script> // // This will then spawn a worker, define some utility functions, and then // execute the code in myWorkerTestCase.js. You can then use these // functions in your worker-side test: // // ok() - like the SimpleTest assert // is() - like the SimpleTest assert // workerTestDone() - like SimpleTest.finish() indicating the test is complete // // There are also some functions for requesting information that requires // SpecialPowers or other main-thread-only resources: // // workerTestGetPrefs() - request an array of prefs value from the main thread // workerTestGetPermissions() - request an array permissions from the MT // workerTestGetVersion() - request the current version string from the MT // workerTestGetUserAgent() - request the user agent string from the MT // // For an example see test_worker_interfaces.html and test_worker_interfaces.js.
function workerTestExec(script) { returnnew Promise(function (resolve, reject) { var worker = new Worker("worker_wrapper.js");
worker.onmessage = function (event) {
is(
event.data.context, "Worker", "Correct context for messages received on the worker"
); if (event.data.type == "finish") {
worker.terminate();
SpecialPowers.forceGC();
resolve();
} elseif (event.data.type == "status") {
ok(event.data.status, event.data.context + ": " + event.data.msg);
} elseif (event.data.type == "getPrefs") {
let result = {};
event.data.prefs.forEach(function (pref) {
result[pref] = SpecialPowers.Services.prefs.getBoolPref(pref);
});
worker.postMessage({
type: "returnPrefs",
prefs: event.data.prefs,
result,
});
} elseif (event.data.type == "getPermissions") {
let result = {};
event.data.permissions.forEach(function (permission) {
result[permission] = SpecialPowers.hasPermission(
permission,
window.document
);
});
worker.postMessage({
type: "returnPermissions",
permissions: event.data.permissions,
result,
});
} elseif (event.data.type == "getUserAgent") {
worker.postMessage({
type: "returnUserAgent",
result: navigator.userAgent,
});
}
};
worker.onerror = function (event) {
reject("Worker had an error: " + event.data);
};
worker.postMessage({ script });
});
}
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